Araya-Lopez, CCAraya-LopezRomero-Figueroa, JJRomero-FigueroaSalazar-Gonzalez, RRSalazar-GonzalezAbarca, GabrielGabrielAbarcaCabezas, ReneReneCabezasConejeros, JaelJaelConejerosMarco, Jose F.Jose F.MarcoMerlet, GastonGastonMerletValdebenito, CristianCristianValdebenito2025-04-232025-04-23202210.1002/cctc.202200046https://sic.vriic.usach.cl/entities/publication/7145e876-eb39-46b1-ae2b-292ea7d26f6eThe dehydration of fructose to selectively produce 5-HMF was catalytically developed in a new type of ionic liquids based on triazoles supported on alumina (Al2O3). The synthesis of triazoles by 1,3-dipolar cycloaddition allows for creating a tailor-made triazole, that was eventually used to design catalysts based on triazolium-based ionic liquids. In this work, four catalysts based on triazolium-ionic liquids supported on Al2O3 were synthesized to produce 5-HMF from fructose in DMSO as the reaction solvent. According to their molecular structure, the catalysts were tagged as TR1/Al2O3, TR1-HSO4/Al2O3, TR2/Al2O3, and TR2-HSO4/Al2O3. © 2022 Wiley-VCH GmbH.en-USBiomassDehydration reactionHydroxymethylfurfuralTriazolesTriazolium-based ionic liquidshttps://doi.org/10.1002/cctc.202200046